What is the frequency of light released when an electron moves from the 2nd energy level to the 1st energy level in hydrogen (don't reach for a calculator, you should be able to estimate 3/4s of a number like 3.3

When will le chatelier's principle come into effect? at the beginning of a reaction, when there are only reactants when a reaction has reached chemical equilibrium when a catalyst is added to a reaction mixture when a reaction is occurring but not yet at equilibrium

When svante arrhenius first proposed his acid-base theory, he was a doctoral candidate. his professors thought his ideas were unfounded. within a decade, the arrhenius theory of acid-base was widely accepted and praised within the scientific world. arrhenius defined acids as compounds having ionizable hydrogen and bases as compounds with ionizable a) barium. b) hydronium. c) hydroxide. d) oxygen.

How many grams of magnesium metal will react completely with 8.3 liters of 5.5m hcl? show all work